Muscles of the Thigh

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Questions and Answers

What is the action of the Sartorius muscle?

Flexion of thigh and lateral rotation of femur

Where is the origin of the Sartorius muscle?

Anterior superior iliac spine

Where does the Sartorius muscle insert?

Proximal shaft of tibia

What is the primary action of the Adductor magnus muscle?

<p>Adduction and extension of thigh (C)</p> Signup and view all the answers

What is the origin of the Adductor magnus muscle?

<p>Pubis and ischium</p> Signup and view all the answers

Where does the Adductor magnus muscle insert?

<p>Gluteal tuberosity and linea aspera of femur</p> Signup and view all the answers

True or False: The primary action of the Adductor longus and brevis muscles is abduction of the thigh.

<p>False (B)</p> Signup and view all the answers

From where do the Adductor longus and brevis muscles originate?

<p>Body and inferior ramus of pubis</p> Signup and view all the answers

Where do the Adductor longus and brevis muscles insert?

<p>Linea aspera of femur</p> Signup and view all the answers

Describe the actions of the Rectus femoris muscle.

<p>Extension of leg; flexion of thigh</p> Signup and view all the answers

What is the origin of the Rectus femoris muscle?

<p>Anterior inferior iliac spine</p> Signup and view all the answers

Where does the Rectus femoris muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What is the action of the Vastus lateralis muscle?

<p>Extension of leg (B)</p> Signup and view all the answers

Where does the Vastus lateralis muscle originate?

<p>Greater trochanter of femur</p> Signup and view all the answers

What is the insertion point of the Vastus lateralis muscle?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What is the action of the Vastus intermedius muscle?

<p>Extension of leg</p> Signup and view all the answers

What is the origin of the Vastus intermedius muscle?

<p>Anterolateral shaft of femur</p> Signup and view all the answers

Where does the Vastus intermedius muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

True or False: The Vastus medialis muscle primarily flexes the leg.

<p>False (B)</p> Signup and view all the answers

Describe the origin points of the Vastus medialis muscle.

<p>Intertrochanteric line and linea aspera of femur</p> Signup and view all the answers

What is the insertion point of the Vastus medialis muscle?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What are the actions of the Tensor fasciae latae muscle?

<p>Flexion, abduction, and medial rotation of thigh</p> Signup and view all the answers

Where does the Tensor fasciae latae muscle originate?

<p>Anterior superior iliac spine</p> Signup and view all the answers

What is the insertion point of the Tensor fasciae latae muscle?

<p>Iliotibial tract</p> Signup and view all the answers

What is the main action of the Gluteus medius muscle?

<p>Abduction of thigh (A)</p> Signup and view all the answers

From where does the Gluteus medius muscle originate?

<p>Ala of ilium</p> Signup and view all the answers

Where does the Gluteus medius muscle insert?

<p>Greater trochanter of femur</p> Signup and view all the answers

Describe the actions of the Gluteus maximus muscle.

<p>Extension, lateral rotation, and abduction of thigh</p> Signup and view all the answers

What are the origin points of the Gluteus maximus muscle?

<p>Ala of ilium, sacrum, coccyx</p> Signup and view all the answers

Where does the Gluteus maximus muscle insert?

<p>Gluteal tuberosity of femur</p> Signup and view all the answers

True or False: The Biceps femoris only acts to flex the leg.

<p>False (B)</p> Signup and view all the answers

What is the origin of the Biceps femoris muscle?

<p>Ischial tuberosity</p> Signup and view all the answers

Where does the Biceps femoris muscle insert?

<p>Head of fibula</p> Signup and view all the answers

What are the actions of the Semitendinosus muscle?

<p>Flexion of leg; extension of thigh</p> Signup and view all the answers

Where does the Semitendinosus muscle originate?

<p>Ischial tuberosity</p> Signup and view all the answers

What is the insertion point of the Semitendinosus muscle?

<p>Proximal shaft of tibia</p> Signup and view all the answers

Which of the following describes the actions of the Semimembranosus muscle?

<p>Flexion of leg; extension of thigh (D)</p> Signup and view all the answers

What is the origin of the Semimembranosus muscle?

<p>Ischial tuberosity</p> Signup and view all the answers

Where does the Semimembranosus muscle insert?

<p>Medial condyle of tibia</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) tertius muscle?

<p>Dorsiflexion and eversion of foot</p> Signup and view all the answers

Where does the Fibularis (peroneus) tertius muscle originate?

<p>Fibula and interosseous membrane</p> Signup and view all the answers

Where does the Fibularis (peroneus) tertius muscle insert?

<p>5th metatarsal (B)</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) brevis muscle?

<p>Plantar flexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) brevis muscle?

<p>Distal shaft of fibula</p> Signup and view all the answers

Where does the Fibularis (peroneus) brevis muscle insert?

<p>5th metatarsal</p> Signup and view all the answers

True or False: The Fibularis (peroneus) longus muscle primarily performs dorsiflexion and inversion of the foot.

<p>False (B)</p> Signup and view all the answers

Where does the Fibularis (peroneus) longus muscle originate?

<p>Proximal shaft of fibula</p> Signup and view all the answers

Describe the insertion points of the Fibularis (peroneus) longus muscle.

<p>Medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Gastrocnemius muscle?

<p>Plantar flexion of foot; flexion of leg</p> Signup and view all the answers

From where does the Gastrocnemius muscle originate?

<p>Medial and lateral condyles of femur</p> Signup and view all the answers

Where does the Gastrocnemius muscle insert?

<p>Calcaneus</p> Signup and view all the answers

What actions are performed by the Plantaris muscle?

<p>Plantar flexion of foot and flexion of leg (A)</p> Signup and view all the answers

What is the origin of the Plantaris muscle?

<p>Distal shaft of femur</p> Signup and view all the answers

Where does the Plantaris muscle insert?

<p>Calcaneus</p> Signup and view all the answers

What is the primary action of the Soleus muscle?

<p>Plantar flexion of foot</p> Signup and view all the answers

Describe the origin points of the Soleus muscle.

<p>Proximal shafts of tibia and fibula</p> Signup and view all the answers

Where does the Soleus muscle insert?

<p>Calcaneus</p> Signup and view all the answers

What are the actions of the Flexor digitorum longus muscle?

<p>Plantar flexion and inversion of foot; flexion of toes II-V</p> Signup and view all the answers

What is the origin of the Flexor digitorum longus muscle?

<p>Mid-shaft of tibia</p> Signup and view all the answers

Where does the Flexor digitorum longus muscle insert?

<p>Distal phalanges II-V</p> Signup and view all the answers

True or False: The Iliopsoas muscle group primarily extends the thigh.

<p>False (B)</p> Signup and view all the answers

What are the combined origins of the Iliopsoas muscle group (Iliacus and Psoas major)?

<p>Iliac fossa, ala of sacrum and vertebrae (T12-L5)</p> Signup and view all the answers

Where does the Iliopsoas muscle group (Iliacus and Psoas major) insert?

<p>Lesser trochanter (femur)</p> Signup and view all the answers

Describe the actions of the Pectineus muscle.

<p>Adducts, flexes, and medially rotates thigh</p> Signup and view all the answers

From where does the Pectineus muscle originate?

<p>Body and superior ramus of pubis</p> Signup and view all the answers

Where does the Pectineus muscle insert?

<p>Proximal shaft of femur</p> Signup and view all the answers

What are the actions of the Gracilis muscle?

<p>Adduction of thigh; flexion of leg</p> Signup and view all the answers

Where does the Gracilis muscle originate?

<p>Body and superior ramus of pubis</p> Signup and view all the answers

Where does the Gracilis muscle insert?

<p>Proximal shaft of tibia</p> Signup and view all the answers

True or False: The Tibialis anterior muscle plantar flexes and everts the foot.

<p>False (B)</p> Signup and view all the answers

What are the origin points of the Tibialis anterior muscle?

<p>Lateral condyle of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Tibialis anterior muscle insert?

<p>Medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Extensor digitorum longus muscle?

<p>Extension of toes 2-5; Dorsiflexion and eversion of ankle (A)</p> Signup and view all the answers

Describe the origin points of the Extensor digitorum longus muscle.

<p>Lateral condyle shaft of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Extensor digitorum longus muscle insert?

<p>Distal phalanges of toes 2-5</p> Signup and view all the answers

What are the actions of the Extensor hallucis longus muscle?

<p>Extension of great toe; dorsiflexion and inversion of foot</p> Signup and view all the answers

What are the origin points of the Extensor hallucis longus muscle?

<p>Fibula ; interosseus membrane</p> Signup and view all the answers

Where does the Extensor hallucis longus muscle insert?

<p>Distal phalanx of the great toe</p> Signup and view all the answers

Which option best describes the actions of the Flexor hallucis longus muscle?

<p>Plantar flexion and inversion of foot; flexion of great toe (B)</p> Signup and view all the answers

Describe the origin of the Flexor hallucis longus muscle.

<p>Posterior shaft of fibula; interosseus membrane</p> Signup and view all the answers

Where does the Flexor hallucis longus muscle insert?

<p>Distal phalanx of great toe</p> Signup and view all the answers

What is the action of the Sartorius muscle?

<p>Flexion of thigh and lateral rotation of femur</p> Signup and view all the answers

What is the origin of the Sartorius muscle?

<p>Anterior superior iliac spine</p> Signup and view all the answers

Where does the Sartorius muscle insert?

<p>Proximal shaft of tibia</p> Signup and view all the answers

What is the action of the Adductor magnus muscle?

<p>Adduction and extension of thigh</p> Signup and view all the answers

What is the origin of the Adductor magnus muscle?

<p>Pubis and ischium</p> Signup and view all the answers

Where does the Adductor magnus muscle insert?

<p>Gluteal tuberosity and linea aspera of femur</p> Signup and view all the answers

What is the primary action of the Adductor longus and brevis muscles?

<p>Adduction of thigh</p> Signup and view all the answers

What is the origin of the Adductor longus and brevis muscles?

<p>Body and inferior ramus of pubis</p> Signup and view all the answers

Where do the Adductor longus and brevis muscles insert?

<p>Linea aspera of femur</p> Signup and view all the answers

What are the actions of the Rectus femoris muscle?

<p>Extension of leg; flexion of thigh</p> Signup and view all the answers

What is the origin of the Rectus femoris muscle?

<p>Anterior inferior iliac spine</p> Signup and view all the answers

Where does the Rectus femoris muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

True or False: The Vastus lateralis muscle flexes the leg.

<p>False (B)</p> Signup and view all the answers

What is the origin of the Vastus lateralis muscle?

<p>Greater trochanter of femur</p> Signup and view all the answers

Where does the Vastus lateralis muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What is the action of the Vastus intermedius muscle?

<p>Extension of leg</p> Signup and view all the answers

What is the origin of the Vastus intermedius muscle?

<p>Anterolateral shaft of femur</p> Signup and view all the answers

Where does the Vastus intermedius muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What is the primary action of the Vastus medialis muscle?

<p>Extension of leg (A)</p> Signup and view all the answers

What is the origin of the Vastus medialis muscle?

<p>Intertrochanteric line and linea aspera of femur</p> Signup and view all the answers

Where does the Vastus medialis muscle insert?

<p>Patella and tibial tuberosity</p> Signup and view all the answers

What are the actions of the Tensor fasciae latae muscle?

<p>Flexion, abduction, and medial rotation of thigh</p> Signup and view all the answers

What is the origin of the Tensor fasciae latae muscle?

<p>Anterior superior iliac spine</p> Signup and view all the answers

Where does the Tensor fasciae latae muscle insert?

<p>Iliotibial tract</p> Signup and view all the answers

What is the action of the Gluteus medius muscle?

<p>Abduction of thigh</p> Signup and view all the answers

What is the origin of the Gluteus medius muscle?

<p>Ala of ilium</p> Signup and view all the answers

Where does the Gluteus medius muscle insert?

<p>Greater trochanter of femur</p> Signup and view all the answers

What are the actions of the Gluteus maximus muscle?

<p>Extension, lateral rotation, and abduction of thigh</p> Signup and view all the answers

What is the origin of the Gluteus maximus muscle?

<p>Ala of ilium, sacrum, coccyx</p> Signup and view all the answers

Where does the Gluteus maximus muscle insert?

<p>Gluteal tuberosity of femur</p> Signup and view all the answers

What are the actions of the Biceps femoris muscle?

<p>Flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Biceps femoris muscle?

<p>Ischial tuberosity</p> Signup and view all the answers

Where does the Biceps femoris muscle insert?

<p>Head of fibula</p> Signup and view all the answers

What are the actions of the Semitendinosus muscle?

<p>Flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Semitendinosus muscle?

<p>Ischial tuberosity</p> Signup and view all the answers

Where does the Semitendinosus muscle insert?

<p>Proximal shaft of tibia</p> Signup and view all the answers

What are the actions of the Semimembranosus muscle?

<p>Flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Semimembranosus muscle?

<p>Ischial tuberosity</p> Signup and view all the answers

Where does the Semimembranosus muscle insert?

<p>Medial condyle of tibia</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) tertius muscle?

<p>Dorsiflexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) tertius muscle?

<p>Fibula and interosseous membrane</p> Signup and view all the answers

Where does the Fibularis (peroneus) tertius muscle insert?

<p>5th metatarsal</p> Signup and view all the answers

Which actions are performed by the Fibularis (peroneus) brevis muscle?

<p>Plantar flexion and eversion (B)</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) brevis muscle?

<p>Distal shaft of fibula</p> Signup and view all the answers

Where does the Fibularis (peroneus) brevis muscle insert?

<p>5th metatarsal</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) longus muscle?

<p>Plantar flexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) longus muscle?

<p>Proximal shaft of fibula</p> Signup and view all the answers

Where does the Fibularis (peroneus) longus muscle insert?

<p>Medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Gastrocnemius muscle?

<p>Plantar flexion of foot; flexion of leg</p> Signup and view all the answers

What is the origin of the Gastrocnemius muscle?

<p>Medial and lateral condyles of femur</p> Signup and view all the answers

Where does the Gastrocnemius muscle insert?

<p>Calcaneus</p> Signup and view all the answers

What are the actions of the Plantaris muscle?

<p>Plantar flexion of foot and flexion of leg</p> Signup and view all the answers

What is the origin of the Plantaris muscle?

<p>Distal shaft of femur</p> Signup and view all the answers

Where does the Plantaris muscle insert?

<p>Calcaneus</p> Signup and view all the answers

True or False: The Soleus muscle contributes to dorsiflexion of the foot.

<p>False (B)</p> Signup and view all the answers

What is the origin of the Soleus muscle?

<p>Proximal shafts of tibia and fibula</p> Signup and view all the answers

Where does the Soleus muscle insert?

<p>Calcaneus</p> Signup and view all the answers

What are the actions of the Flexor digitorum longus muscle?

<p>Plantar flexion and inversion of foot; flexion of toes II-V</p> Signup and view all the answers

What is the origin of the Flexor digitorum longus muscle?

<p>Mid-shaft of tibia</p> Signup and view all the answers

Where does the Flexor digitorum longus muscle insert?

<p>Distal phalanges II-V</p> Signup and view all the answers

What are the actions of the Iliopsoas muscle group (Iliacus and Psoas major)?

<p>Flexion of thigh and medial rotation of trunk</p> Signup and view all the answers

What is the origin of the Iliopsoas muscle group (Iliacus and Psoas major)?

<p>Iliac fossa, ala of sacrum and vertebrae (T12-L5)</p> Signup and view all the answers

Where does the Iliopsoas muscle group (Iliacus and Psoas major) insert?

<p>Lesser trochanter (femur)</p> Signup and view all the answers

What are the actions of the Pectineus muscle?

<p>Adducts, flexes, and medially rotates thigh</p> Signup and view all the answers

What is the origin of the Pectineus muscle?

<p>Body and superior ramus of pubis</p> Signup and view all the answers

Where does the Pectineus muscle insert?

<p>Proximal shaft of femur</p> Signup and view all the answers

What are the actions of the Gracilis muscle?

<p>Adduction of thigh; flexion of leg</p> Signup and view all the answers

What is the origin of the Gracilis muscle?

<p>Body and inferior ramus of pubis</p> Signup and view all the answers

Where does the Gracilis muscle insert?

<p>Proximal shaft of tibia</p> Signup and view all the answers

What are the actions of the Tibialis anterior muscle?

<p>Dorsiflexes and inverts foot</p> Signup and view all the answers

What is the origin of the Tibialis anterior muscle?

<p>Lateral condyle of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Tibialis anterior muscle insert?

<p>Medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Extensor digitorum longus muscle?

<p>Extension of toes 2-5; Dorsiflexion and eversion of ankle</p> Signup and view all the answers

What is the origin of the Extensor digitorum longus muscle?

<p>Lateral condyle shaft of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Extensor digitorum longus muscle insert?

<p>Distal phalanges of toes 2-5</p> Signup and view all the answers

What are the actions of the Extensor hallucis longus muscle?

<p>Extension of great toe; dorsiflexion and inversion of foot</p> Signup and view all the answers

What is the origin of the Extensor hallucis longus muscle?

<p>Fibula; interosseus membrane</p> Signup and view all the answers

Where does the Extensor hallucis longus muscle insert?

<p>Distal phalanx of the great toe</p> Signup and view all the answers

What are the actions of the Flexor hallucis longus muscle?

<p>Plantar flexion and inversion of foot; flexion of great toe</p> Signup and view all the answers

What is the origin of the Flexor hallucis longus muscle?

<p>Posterior shaft of fibula; interosseus membrane</p> Signup and view all the answers

Where does the Flexor hallucis longus muscle insert?

<p>Distal phalanx of great toe</p> Signup and view all the answers

What is the action of the Sartorius muscle?

<p>flexion of thigh and lateral rotation of femur</p> Signup and view all the answers

What is the origin of the Sartorius muscle?

<p>anterior superior iliac spine</p> Signup and view all the answers

Where does the Sartorius muscle insert?

<p>proximal shaft of tibia</p> Signup and view all the answers

Describe the action of the Adductor magnus muscle.

<p>adduction and extension of thigh</p> Signup and view all the answers

What is the origin of the Adductor magnus muscle?

<p>pubis and ischium</p> Signup and view all the answers

Where does the Adductor magnus muscle insert?

<p>gluteal tuberosity and linea aspera of femur</p> Signup and view all the answers

What is the action of the Adductor longus and brevis muscles?

<p>adduction of thigh</p> Signup and view all the answers

Identify the origin of the Adductor longus and brevis muscles.

<p>body and inferior ramus of pubis</p> Signup and view all the answers

Where do the Adductor longus and brevis muscles insert?

<p>linea aspera of femur</p> Signup and view all the answers

What are the actions of the Rectus femoris muscle?

<p>extension of leg; flexion of thigh</p> Signup and view all the answers

What is the origin of the Rectus femoris muscle?

<p>anterior inferior iliac spine</p> Signup and view all the answers

Where does the Rectus femoris muscle insert?

<p>patella and tibial tuberosity</p> Signup and view all the answers

What is the action of the Vastus lateralis muscle?

<p>extension of leg</p> Signup and view all the answers

What is the origin of the Vastus lateralis muscle?

<p>greater trochanter of femur</p> Signup and view all the answers

Where does the Vastus lateralis muscle insert?

<p>patella and tibial tuberosity</p> Signup and view all the answers

Describe the action of the Vastus intermedius muscle.

<p>extension of leg</p> Signup and view all the answers

What is the origin of the Vastus intermedius muscle?

<p>anterolateral shaft of femur</p> Signup and view all the answers

Where does the Vastus intermedius muscle insert?

<p>patella and tibial tuberosity</p> Signup and view all the answers

What is the action of the Vastus medialis muscle?

<p>extension of leg</p> Signup and view all the answers

Identify the origin of the Vastus medialis muscle.

<p>intertrochanteric line and linea aspera of femur</p> Signup and view all the answers

Where does the Vastus medialis muscle insert?

<p>patella and tibial tuberosity</p> Signup and view all the answers

What are the actions of the Tensor fasciae latae muscle?

<p>flexion, abduction, and medial rotation of thigh</p> Signup and view all the answers

What is the origin of the Tensor fasciae latae muscle?

<p>anterior superior iliac spine</p> Signup and view all the answers

Where does the Tensor fasciae latae muscle insert?

<p>iliotibial tract</p> Signup and view all the answers

What is the primary action of the Gluteus medius muscle?

<p>abduction of thigh</p> Signup and view all the answers

What is the origin of the Gluteus medius muscle?

<p>ala of ilium</p> Signup and view all the answers

Where does the Gluteus medius muscle insert?

<p>greater trochanter of femur</p> Signup and view all the answers

Describe the actions of the Gluteus maximus muscle.

<p>extension, lateral rotation, and abduction of thigh</p> Signup and view all the answers

What is the origin of the Gluteus maximus muscle?

<p>ala of ilium, sacrum, coccyx</p> Signup and view all the answers

Where does the Gluteus maximus muscle insert?

<p>gluteal tuberosity of femur</p> Signup and view all the answers

What are the actions of the Biceps femoris muscle?

<p>flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Biceps femoris muscle?

<p>ischial tuberosity</p> Signup and view all the answers

Where does the Biceps femoris muscle insert?

<p>head of fibula</p> Signup and view all the answers

What are the actions of the Semitendinosus muscle?

<p>flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Semitendinosus muscle?

<p>ischial tuberosity</p> Signup and view all the answers

Where does the Semitendinosus muscle insert?

<p>proximal shaft of tibia</p> Signup and view all the answers

What are the actions of the Semimembranosus muscle?

<p>flexion of leg; extension of thigh</p> Signup and view all the answers

What is the origin of the Semimembranosus muscle?

<p>ischial tuberosity</p> Signup and view all the answers

Where does the Semimembranosus muscle insert?

<p>medial condyle of tibia</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) tertius muscle?

<p>dorsiflexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) tertius muscle?

<p>fibula and interosseous membrane</p> Signup and view all the answers

Where does the Fibularis (peroneus) tertius muscle insert?

<p>5th metatarsal</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) brevis muscle?

<p>Plantar flexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) brevis muscle?

<p>distal shaft of fibula</p> Signup and view all the answers

Where does the Fibularis (peroneus) brevis muscle insert?

<p>5th metatarsal</p> Signup and view all the answers

What are the actions of the Fibularis (peroneus) longus muscle?

<p>Plantar flexion and eversion of foot</p> Signup and view all the answers

What is the origin of the Fibularis (peroneus) longus muscle?

<p>proximal shaft of fibula</p> Signup and view all the answers

Where does the Fibularis (peroneus) longus muscle insert?

<p>medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Gastrocnemius muscle?

<p>plantar flexion of foot; flexion of leg</p> Signup and view all the answers

What is the origin of the Gastrocnemius muscle?

<p>medial and lateral condyles of femur</p> Signup and view all the answers

Where does the Gastrocnemius muscle insert?

<p>calcaneus</p> Signup and view all the answers

What are the actions of the Plantaris muscle?

<p>plantar flexion of foot and flexion of leg</p> Signup and view all the answers

What is the origin of the Plantaris muscle?

<p>distal shaft of femur</p> Signup and view all the answers

Where does the Plantaris muscle insert?

<p>calcaneus</p> Signup and view all the answers

What is the primary action of the Soleus muscle?

<p>plantar flexion of foot</p> Signup and view all the answers

What is the origin of the Soleus muscle?

<p>proximal shafts of tibia and fibula</p> Signup and view all the answers

Where does the Soleus muscle insert?

<p>calcaneus</p> Signup and view all the answers

Describe the actions of the Flexor digitorum longus muscle.

<p>plantar flexion and inversion of foot; flexion of toes II-V</p> Signup and view all the answers

What is the origin of the Flexor digitorum longus muscle?

<p>mid-shaft of tibia</p> Signup and view all the answers

Where does the Flexor digitorum longus muscle insert?

<p>distal phalanges II-V</p> Signup and view all the answers

What are the actions of the Iliopsoas muscle group (Iliacus and Psoas major)?

<p>flexion of thigh and medial rotation of trunk</p> Signup and view all the answers

What is the origin of the Iliopsoas muscle group (Iliacus and Psoas major)?

<p>iliac fossa, ala of sacrum and vertebrae (T12-L5)</p> Signup and view all the answers

Where does the Iliopsoas muscle group (Iliacus and Psoas major) insert?

<p>lesser trochanter (femur)</p> Signup and view all the answers

What are the actions of the Pectineus muscle?

<p>adducts, flexes, and medially rotates thigh</p> Signup and view all the answers

What is the origin of the Pectineus muscle?

<p>body and superior ramus of pubis</p> Signup and view all the answers

Where does the Pectineus muscle insert?

<p>proximal shaft of femur</p> Signup and view all the answers

What are the actions of the Gracilis muscle?

<p>adduction of thigh; flexion of leg</p> Signup and view all the answers

What is the origin of the Gracilis muscle?

<p>body and inferior ramus of pubis</p> Signup and view all the answers

Where does the Gracilis muscle insert?

<p>proximal shaft of tibia</p> Signup and view all the answers

What are the actions of the Tibialis anterior muscle?

<p>dorsiflexes and inverts foot</p> Signup and view all the answers

What is the origin of the Tibialis anterior muscle?

<p>lateral condyle of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Tibialis anterior muscle insert?

<p>medial cuneiform and 1st metatarsal</p> Signup and view all the answers

What are the actions of the Extensor digitorum longus muscle?

<p>Extension of toes 2-5; Dorsiflexion and eversion of ankle</p> Signup and view all the answers

What is the origin of the Extensor digitorum longus muscle?

<p>lateral condyle shaft of tibia; interosseous membrane</p> Signup and view all the answers

Where does the Extensor digitorum longus muscle insert?

<p>distal phalanges of toes 2-5</p> Signup and view all the answers

What are the actions of the Extensor hallucis longus muscle?

<p>extension of great toe; dorsiflexion and inversion of foot</p> Signup and view all the answers

What is the origin of the Extensor hallucis longus muscle?

<p>Fibula; interosseus membrane</p> Signup and view all the answers

Where does the Extensor hallucis longus muscle insert?

<p>distal phalanx of the great toe</p> Signup and view all the answers

What are the actions of the Flexor hallucis longus muscle?

<p>plantar flexion and inversion of foot; flexion of great toe</p> Signup and view all the answers

What is the origin of the Flexor hallucis longus muscle?

<p>posterior shaft of fibula; interosseus membrane</p> Signup and view all the answers

Where does the Flexor hallucis longus muscle insert?

<p>distal phalanx of great toe</p> Signup and view all the answers

Flashcards

Sartorius action

Flexion of thigh and lateral rotation of femur.

Sartorius origin

Anterior superior iliac spine.

Sartorius insertion

Proximal shaft of tibia.

Adductor magnus action

Adduction and extension of thigh.

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Adductor magnus origin

Pubis and ischium.

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Adductor magnus insertion

Gluteal tuberosity and linea aspera of femur.

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Adductor longus and brevis action

Adduction of thigh.

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Adductor longus and brevis origin

Body and inferior ramus of pubis.

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Adductor longus and brevis insertion

Linea aspera of femur.

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Rectus femoris action

Extension of leg; flexion of thigh.

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Rectus femoris origin

Anterior inferior iliac spine.

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Rectus femoris insertion

Patella and tibial tuberosity.

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Vastus lateralis action

Extension of leg.

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Vastus lateralis origin

Greater trochanter of femur.

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Vastus lateralis insertion

Patella and tibial tuberosity.

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Vastus intermedius action

Extension of leg.

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Vastus intermedius origin

Anterolateral shaft of femur.

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Vastus intermedius insertion

Patella and tibial tuberosity.

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Vastus medialis action

Extension of leg.

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Vastus medialis origin

Intertrochanteric line and linea aspera of femur.

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Vastus medialis insertion

Patella and tibial tuberosity.

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Tensor fasciae latae action

Flexion, abduction, and medial rotation of thigh.

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Tensor fasciae latae origin

Anterior superior iliac spine.

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Tensor fasciae latae insertion

Iliotibial tract.

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Gluteus medius action

Abduction of thigh.

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Gluteus medius origin

Ala of ilium.

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Gluteus medius insertion

Greater trochanter of femur.

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Gluteus maximus action

Extension, lateral rotation, and abduction of thigh.

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Gluteus maximus origin

Ala of ilium, sacrum, coccyx.

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Gluteus maximus insertion

Gluteal tuberosity of femur.

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Biceps femoris action

Flexion of leg; extension of thigh.

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Biceps femoris origin

Ischial tuberosity.

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Biceps femoris insertion

Head of fibula.

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Semitendinosus action

Flexion of leg; extension of thigh.

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Semitendinosus origin

Ischial tuberosity.

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semitendinosus insertion

Proximal shaft of tibia.

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Semimembranosus action

Flexion of leg; extension of thigh.

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Semimembranosus origin

Ischial tuberosity.

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Semimembranosus insertion

Medial condyle of tibia.

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Fibularis (peroneus) tertius action

Dorsiflexion and eversion of foot.

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Fibularis (peroneus) tertius origin

Fibula and interosseous membrane.

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Fibularis (peroneus) tertius insertion

5th metatarsal.

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Fibularis (peroneus) brevis action

Plantar flexion and eversion of foot.

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Fibularis (peroneus) brevis origin

Distal shaft of fibula.

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Fibularis (peroneus) brevis insertion

5th metatarsal.

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Fibularis (peroneus) longus action

Plantar flexion and eversion of foot.

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Fibularis (peroneus) longus origin

Proximal shaft of fibula.

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Fibularis (peroneus) longus insertion

Medial cuneiform and 1st metatarsal.

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Gastrocnemius action

Plantar flexion of foot; flexion of leg.

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Gastrocnemius origin

Medial and lateral condyles of femur.

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Gastrocnemius insertion

Calcaneus.

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Plantaris action

Plantar flexion of foot and flexion of leg.

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Plantaris origin

Distal shaft of femur.

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Plantaris insertion

Calcaneus.

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Soleus action

Plantar flexion of foot.

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Soleus origin

Proximal shafts of tibia and fibula.

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Soleus insertion

Calcaneus.

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Flexor digitorum longus action

Plantar flexion and inversion of foot; flexion of toes II-V.

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Flexor digitorum longus origin

Mid-shaft of tibia.

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Flexor digitorum longus insertion

Distal phalanges II-V.

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Iliopsoas ( iliacus and psoas major) action

Flexion of thigh and medial rotation of trunk.

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Iliopsoas ( iliacus and psoas major) origin

Iliac fossa, ala of sacrum and vertebrae (T12-L5).

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Iliopsoas ( iliacus and psoas major) insertion

Lesser trochanter (femur).

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pectineus action

Adducts, flexes, and medially rotates thigh.

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pectineus origin

Body and superior ramus.

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pectineus insert

Proximinal shaft of femur.

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gracialis action

Adduction of thigh; flexion of leg.

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gracialis origin

Body and superior ramus.

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gracialis insert

Proximinal shaft of tibia.

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tibialis anterior action

Dorsiflexes and inverts foot.

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tibialis anterior origin

Lateral condyle of tibia; inerosseus membrane.

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tibialis anterior insertion

Medial cuneiform and 1st metatarsal.

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Extensor digitorum longus action

Extension of toes 2-5, Dorsiflexion and eversion of ankle.

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Extensor digitorum longus origin

lateral condyle shaft of tibia; interserrous membrane.

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Extensor digitorum longus insertion

distal phalanges of toes 2-5

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extensor hallucis longus action

extension of great toe; dorsiflexion and inversion of foot.

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extensor hallucis longus origin

Fibula ; interosseus membrane

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extensor hallucis longus insertion

distal phalynx of the great toe

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Flexor hallucis longus action

plantar flexion and inversion of foot; flexion of great toe

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Flexor hallucis longus origin

posterior shaft of fibula; interosseus membrane

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Flexor hallucis longus insertion

distal phalange of great toe

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Study Notes

Sartorius

  • Action: thigh flexion and femur lateral rotation.
  • Origin: anterior superior iliac spine.
  • Insertion: proximal shaft of tibia.

Adductor Magnus

  • Action: thigh adduction and extension.
  • Origin: pubis and ischium.
  • Insertion: gluteal tuberosity and linea aspera of femur.

Adductor Longus and Brevis

  • Action: thigh adduction.
  • Origin: body and inferior ramus of pubis.
  • Insertion: linea aspera of femur.

Rectus Femoris

  • Action: leg extension and thigh flexion.
  • Origin: anterior inferior iliac spine.
  • Insertion: patella and tibial tuberosity.

Vastus Lateralis

  • Action: leg extension.
  • Origin: greater trochanter of femur.
  • Insertion: patella and tibial tuberosity.

Vastus Intermedius

  • Action: leg extension.
  • Origin: anterolateral shaft of femur.
  • Insertion: patella and tibial tuberosity.

Vastus Medialis

  • Action: leg extension.
  • Origin: intertrochanteric line and linea aspera of femur.
  • Insertion: patella and tibial tuberosity.

Tensor Fasciae Latae

  • Action: thigh flexion, abduction, and medial rotation.
  • Origin: anterior superior iliac spine.
  • Insertion: iliotibial tract.

Gluteus Medius

  • Action: thigh abduction.
  • Origin: ala of ilium.
  • Insertion: greater trochanter of femur.

Gluteus Maximus

  • Action: thigh extension, lateral rotation, and abduction.
  • Origin: ala of ilium, sacrum, coccyx.
  • Insertion: gluteal tuberosity of femur.

Biceps Femoris

  • Action: leg flexion and thigh extension.
  • Origin: ischial tuberosity.
  • Insertion: head of fibula.

Semitendinosus

  • Action: leg flexion and thigh extension.
  • Origin: ischial tuberosity.
  • Insertion: proximal shaft of tibia.

Semimembranosus

  • Action: leg flexion and thigh extension.
  • Origin: ischial tuberosity.
  • Insertion: medial condyle of tibia.

Fibularis (Peroneus) Tertius

  • Action: foot dorsiflexion and eversion.
  • Origin: fibula and interosseous membrane.
  • Insertion: 5th metatarsal.

Fibularis (Peroneus) Brevis

  • Action: foot plantar flexion and eversion.
  • Origin: distal shaft of fibula.
  • Insertion: 5th metatarsal.

Fibularis (Peroneus) Longus

  • Action: foot plantar flexion and eversion.
  • Origin: proximal shaft of fibula.
  • Insertion: medial cuneiform and 1st metatarsal.

Gastrocnemius

  • Action: foot plantar flexion and leg flexion.
  • Origin: medial and lateral condyles of femur.
  • Insertion: calcaneus.

Plantaris

  • Action: foot plantar flexion and leg flexion.
  • Origin: distal shaft of femur.
  • Insertion: calcaneus.

Soleus

  • Action: foot plantar flexion.
  • Origin: proximal shafts of tibia and fibula.
  • Insertion: calcaneus.

Flexor Digitorum Longus

  • Action: foot plantar flexion and inversion; flexion of toes II-V.
  • Origin: mid-shaft of tibia.
  • Insertion: distal phalanges II-V.

Iliopsoas (Iliacus and Psoas Major)

  • Action: thigh flexion and trunk medial rotation.
  • Origin: iliac fossa, ala of sacrum, and vertebrae (T12-L5).
  • Insertion: lesser trochanter (femur).

Pectineus

  • Action: thigh adduction, flexion, and medial rotation.
  • Origin: body and superior ramus.
  • Insertion: proximal shaft of femur.

Gracilis

  • Action: thigh adduction and leg flexion.
  • Origin: body and superior ramus.
  • Insertion: proximal shaft of tibia.

Tibialis Anterior

  • Action: foot dorsiflexion and inversion.
  • Origin: lateral condyle of tibia and interosseus membrane.
  • Insertion: medial cuneiform and 1st metatarsal.

Extensor Digitorum Longus

  • Action: extension of toes 2-5, dorsiflexion and eversion of ankle.
  • Origin: lateral condyle shaft of tibia and interserrous membrane.
  • Insertion: distal phalanges of toes 2-5.

Extensor Hallucis Longus

  • Action: great toe extension, foot dorsiflexion and inversion.
  • Origin: Fibula and interosseus membrane.
  • Insertion: distal phalynx of the great toe.

Flexor Hallucis Longus

  • Action: foot plantar flexion and inversion; great toe flexion.
  • Origin: posterior shaft of fibula and interosseus membrane.
  • Insertion: distal phalange of great toe.

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